SN74AHC16244DLG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: High-speed, low-power, non-inverting, 16-bit bus transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Transmits and receives data between two bidirectional buses or systems with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6 ns (typical)
• Output Drive Capability: ±24 mA
• ESD Protection: Human Body Model > 2000 V

Detailed Pin Configuration

The SN74AHC16244DLG4 has a total of 48 pins, which are divided into four groups:

1. Group A (pins 1-12): Bus A Inputs/Outputs
2. Group B (pins 13-24): Bus B Inputs/Outputs
3. Group C (pins 25-36): Control Inputs/Outputs
4. Group D (pins 37-48): Power and Ground Pins

For the detailed pin configuration diagram, please refer to the datasheet provided by the manufacturer.

Functional Features

• Bidirectional Data Transmission: Allows data to be transmitted in both directions between two buses or systems.
• Non-Inverting Logic: Maintains the same logic level on both input and output sides.
• High-Speed Operation: Provides fast data transmission with a propagation delay time of only 6 ns.
• Low Power Consumption: Operates at a supply voltage as low as 2 V, making it suitable for battery-powered devices.
• ESD Protection: Offers robust protection against electrostatic discharge.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - Non-inverting logic simplifies the design of bus interfaces. - Low power consumption prolongs battery life in portable devices. - ESD protection ensures reliability in harsh environments.

Disadvantages: - Limited output drive capability may not be suitable for driving heavy loads. - The TSSOP package may require careful handling during assembly to avoid damage.

Working Principles

The SN74AHC16244DLG4 is a 16-bit bus transceiver that uses non-inverting logic. It allows bidirectional data transmission between two buses or systems with different voltage levels. The device consists of two sets of 8-bit buffers with separate control inputs. When the control inputs are set appropriately, data can flow from one bus to the other. The non-inverting nature of the transceiver ensures that the logic level on the input side is maintained on the output side.

Detailed Application Field Plans

The SN74AHC16244DLG4 is commonly used in various applications, including:

1. Microcontroller Interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Level Shifting: It enables data transfer between systems with incompatible voltage levels, such as between 3.3V and 5V devices.
3. Bus Expansion: It allows multiple devices to share a common bus, increasing the capacity and flexibility of the system.
4. Data Acquisition Systems: It helps interface sensors and measurement devices with microcontrollers or data processing units.

Detailed and Complete Alternative Models

1. SN74AHC244: Similar functionality but with an 8-bit bus width.
2. SN74LVC16244A: Compatible with lower supply voltages (1.65 V to 3.6 V).
3. SN74LVTH16244A: Offers higher output drive capability (±32 mA) for driving heavier loads.

These alternative models provide similar functionality but may have different specifications or package options to suit specific application requirements.

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